package com.xc.smart.security.filter;


import com.xc.smart.entity.LoginUser;
import com.xc.smart.jwt.JWTService;
import com.xc.smart.utlis.SecurityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * token过滤器 验证token有效性
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter
{

    @Autowired
    JWTService jwtService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException
    {
        LoginUser loginUser = jwtService.getLoginUser(request);
        if (!StringUtils.isEmpty(loginUser) && StringUtils.isEmpty(SecurityUtils.getAuthentication()))
        {
            jwtService.verifyToken(loginUser);
            System.out.println("当前用户---"+loginUser.getUsername());
            System.out.println("用户权限---"+loginUser.getPermissions());
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        chain.doFilter(request, response);
    }
}
